On May 29, 2008, at 2:45 AM, Stephen Farrell wrote: > > There has been considerable debate in the past few weeks regarding the > need for a check for domain existence in ADSP. > > I think we've had sufficient time for debating this, let's decide. > Please respond to this by Friday June 6th. > > The text in question (from section 4.2.2 of draft-ietf-dkim-ssp-03) > is as follows: > > 2. _Verify Domain Exists._ The host MUST perform a DNS query for a > record corresponding to the Author Domain (with no prefix). The > type of the query can be of any type, since this step is only to > determine if the domain itself exists in DNS. This query MAY be > done in parallel with the query made in step 2. If the result > of > this query is an "NXDOMAIN" error, the algorithm MUST terminate > with an appropriate error. > > NON-NORMATIVE DISCUSSION: Any resource record type could be > used for this query since the existence of a resource record > of any type will prevent an "NXDOMAIN" error. MX is a > reasonable choice for this purpose is because this record > type > is thought to be the most common for likely domains, and will > therefore result in a result which can be more readily cached > than a negative result. > > There are three options that have been actively discussed:
Modify. (I might be talked into "keep", but "remove" would be a complete non-starter.) Cheers, Steve _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
